https://doi.org/10.1140/epjp/s13360-022-03113-8
Regular Article
Bounds on the absorptive parts of the chromomagnetic and chromoelectric dipole moments of the top quark from LHC data
1
Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, C.P. 72570, Puebla, PUE, Mexico
2
Ingeniería en Mecatrónica, Universidad Politécnica de Puebla, Tercer Carril del Ejido Serrano s/n, San Mateo Cuanalá, Juan C. Bonilla, Puebla, PUE, Mexico
Received:
21
September
2021
Accepted:
26
July
2022
Published online:
15
August
2022
Bounds on the absorptive (imaginary) parts of the top quark chromomagnetic and chromoelectric
dipole moments are obtained by reinterpreting the most recent LHC data in top quark pair production. It is found that both limits are of the order of
, which are consistent with the standard model prediction of
. The effects of the absorptive parts of the top quark dipole moments are also studied via some kinematic distributions of
production, though no significant deviation from the standard model leading-order contribution is observed. Our bounds can be useful to constrain the parameter space of standard model extensions.
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